Jar.



No. 798,480. PATENTED AUG. 29, 1905. J. c. ANDERSON.

JAR.

APPLICATION FILED MAR. 9, 1905.

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JAR.

Specification of Letters Patent.

Patented Aug. 29, 1905.

Original application filed April 18, 1904, Serial No. 203,062. Dividedand this application filed March 9, 1905. $erial N- Z49,18'7- a To allwhom it may concern: 7

Be it known that I, JAMES CRAWFORD AN- DERsoN, a su bject of the King ofGreat Britain, residing at Victoria, county of Victoria, in the Provinceof British Columbia, Canada, have invented certain new and usefulImprovements in Jars; and I do hereby declare that the following is afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to jars adapted to preserve food.

The object of my invention is to provide a vent and closure for the ventin the jar forming the subject-matter of my application, Serial No.203,062, filed April 18, 1904, of which this is a divisionalapplication; and my invention consists of the construction, combination,and arrangement of parts, as herein illustrated and described.

In the accompanying drawings, forming part of this application, I haveillustrated one form of embodiment of my invention, in which drawingssimilar reference characters designate corresponding parts, and in whichFigure 1 is a perspective view of a jar provided with the vent of myinvention. Fig. 2 is a top plan view illustrating a jar-cover providedwith the vent and closure of my invention. Fig. 3 is a central verticalsection taken on the line 3 3 of Fig. 2, and Fig. 4 is a perspectiveview of the vent-closure of my invention.

Referring to the drawings, 5 designates a jar,'and 6 a cover therefor,both preferably of non-metallic material, interposed between the meetingportions of which jar and cover is the usual packing-ring 7. The cover 6is provided with the central air-passage 8, terminating in the enlargedouter recess 9, the walls of which are provided with the oppositely-disposed ears 10, the under surfaces of which ears arecam-shaped, as illustrated at 11, Fig. 3. Disposed in the recess 9 is acir cular disk 12, provid ed with peripheral lugs 13, having uppercam-surfaces 14, as best shown in Fig. 4. The disk 12 is provided withthe stud 15, on the outer end of which stud is a button 16.

My invention is particularly applicable for use in containing food whichis in a heated condition when placed in the receptacle. The cover canthen be placed on the jar and scaled down, and as soon as the heatedgases have escaped through the vent-opening 8 the disk 12 is seated inthe recess 9, and by means of the button 16 the disk is rotated untilthe cam-faces 14 engage the cam-faces 11, whereby the disk 12 is firmlylocked over the ventopening 8.

While I have shown in the accompanying drawings the preferred form of myinvention, it will be understood that I do not limit myself to theprecise form shown, for many of the details may be changed in form orposition without affecting the operativeness or utility of my invention,and I therefore reserve the right to make all such modifications as areincluded within the scope of the following claims or of mechanicalequivalents to the structures set forth.

Having described my invention, what I claim, and desire to secure byLetters Patent,

1. In a jar provided with a cover having an opening thereincommunicating with an enlarged outer recess provided with ears, acircular disk disposed in said recess and provided with lugs adapted toengage said ears, and means for partially rotating said disk.

2. In combination with a cover having an opening therein communicatingwith an enlarged outer recess provided with ears having inclined undersurfaces, a circular disk disposed in said recess and provided with lugshaving inclined upper faces adapted to engage with said ears, a stud onsaid disk, and a button on said stud.

In witness whereof I have hereunto set my hand in the presence of twowitnesses.

JAMES CRAWFORD ANDERSON.

Witnesses:

LOUISA C. NOBLE, ROY E. PEABODY.

